(19)

(11)

EP 1 194 725 A1

(12)

(43) Date of publication: 10.04.2002 Bulletin 2002/15 (21) Application number: 00921236.6 (22) Date of filing: 22.03.2000

(51) International Patent Classification (IPC)7: F26B 3/347, H05B 6/64 (86) International application number: PCT/SE0000/562 (87) International publication number: WO 0057/119 (28.09.2000 Gazette 2000/39)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE Designated Extension States: AL LT LV MK RO SI (30) Priority: 22.03.1999 SE 9901036 (71) Applicant: Zettergren, Leif Gösta 175 49 Järfälla (SE)	(72) Inventor: Zettergren, Leif Gösta 175 49 Järfälla (SE) (74) Representative: Falk, Bengt  Saab Bofors Support ABPatents and Trademarks 691 80 Karlskoga 691 80 Karlskoga (SE)